SOLAR FUNDAMENTALS

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Across
  1. 3. Particles that help scatter solar radiation.
  2. 5. Gas that absorbs UV radiation in the atmosphere.
  3. 6. Gas that absorbs infrared energy along with water vapor.
  4. 9. Electromagnetic energy from the sun reaching Earth.
  5. 11. Most common semiconductor material for solar cells.
  6. 12. Another word for irradiance.
  7. 13. Produced by direct radiation reaching the ground.
  8. 15. Minutes it takes for sun energy to reach earth.
Down
  1. 1. The sun consists of 80% of this gas.
  2. 2. Energy source of the sun is thermonuclear ______.
  3. 4. Light particle that strikes a PV cell.
  4. 7. These reflect part of the radiation back into space.
  5. 8. The sun contains 19% of this element.
  6. 10. The ultimate source of energy for the earth.
  7. 14. Radiation direction changed by scattering.